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A. allegedly B. applying C. chance D. concentrate E. ethical F. gentle G. investigating H. perform I. po
A. allegedly B. applying C. chance D. concentrate E. ethical F. gentle G. investigating H. perform I. po
admin
2019-06-25
18
问题
A. allegedly B. applying C. chance D. concentrate E. ethical
F. gentle G. investigating H. perform I. possibilities J. resisted
K. reputation L. stopped M. specific N. skepticism O. truly
In a lab in Oxford University’s experimental psychology department, researcher Roi Cohen Ka-dosh is testing a relatively new brain-stimulation technique which may help people learn and improve their understanding of math concepts.
The electrodes (电极)are placed in a tightly fitted cap and worn around the head. The device, run off a 9-volt battery commonly used in smoke detectors, induces only a 【C1】______ current and can be targeted to 【C2】______ areas of the brain or applied generally. The mild current reduces the risk of side effects, which has opened up 【C3】______ about using it, even in individuals without a disorder, as a general cognitive enhancer. Scientists also are 【C4】______ its use to treat mood disorders and other conditions.
Dr. Cohen Kadosh’s pioneering work on learning enhancement and brain stimulation is one example of the long journey faced by scientists studying brain-stimulation and cognitive-stimulation techniques. Like other researchers in the community, he has dealt with public concerns about safety and side effects, plus 【C5】______ from other scientists about whether these findings would hold in the wider population.
There are also 【C6】______ questions about the technique. If it 【C7】______ works to enhance cognitive performance, should it be accessible to anyone who can afford to buy the device—which already is available for sale in the U.S.? Should parents be able to 【C8】______ such stimulation on their kids without monitoring? "It’s early days but that hasn’t 【C9】______ some companies from selling the device and marketing it as a learning tool," Dr. Cohen Kadosh says. "Be very careful." However, if the technique continues to show promise, "this type of method may have a 【C10】______ to be the new drug of the 21st century," says Dr. Cohen Kadosh.
【C8】
选项
答案
H
解析
空格位于不定式符号to后,空格填入动词原形。该技术通过刺激大脑以提高认知能力,perform“实施,执行”填入空格,意为“是否可以让父母在没有监控的情况下为他们的孩子实施这样的刺激”,符合文意,故选H。concentrate“集中,全神贯注”填入句子,句意不通,可排除。
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0
专业英语四级
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